Re: Linux i/o tweaking

Jakob Østergaard
2001-11-15T16:42:20Z

On Thu, Nov 15, 2001 at 05:32:29PM +0100, Roy Sigurd Karlsbakk wrote:
> > Could you please try and profile where the time is spent? Boot with
> > profile=2, and then do
> >
> > # readprofile -r
> > # do I/O testing
> > # readprofile | sort -nr
>
> I will.
>
> However ... Is it normal for a server to max out 2xPIII 1266MHz CPUs by
> reading from software RAID-5???

Certainly not.

Well, if you down-scale the experiment it's not. Reading 10.7 MB/sec
will not consume 10% of your two processors.

But queue systems are evil ;) I look forward to seeing the profile.

--
................................................................
: jakob@unthought.net : And I see the elder races, :
:.........................: putrid forms of man :
: Jakob Østergaard : See him rise and claim the earth, :
: OZ9ABN : his downfall is at hand. :
:.........................:............{Konkhra}...............: